How extreme heat is damaging American transportation infrastructure - PBS NewsHour
How extreme heat is damaging American transportation infrastructure | PBS News Weekend
John Yang John Yang
Andrew Corkery Andrew Corkery
Scientists say much of the persistent and dangerous heat blanketing wide swaths of the country is a long-term result of greenhouse gas emissions. Climate scientist Kristina Dahl joins John Yang to discuss how it’s affecting everything from the power grid to trains, planes and automobiles.
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John Yang is the anchor of PBS News Weekend and a correspondent for the PBS News Hour. He covered the first year of the Trump administration and is currently reporting on major national issues from Washington, DC, and across the country.
Andrew Corkery is a national affairs producer at PBS News Weekend.
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Related Knowledge Center: Climate science
What began as a theory in the 1890s — that industrial emissions of carbon dioxide could increase global temperatures — had progressed to a scientific fact a century later. Scientists across a range of disciplines are studying the impact of the still-growing concentration of carbon dioxide and other so-called “greenhouse gases” in the atmosphere as they call for industrial and governmental policies to slow, then halt, the warming of the planet.